How do i use my fingerprint for uses other than login? (email, web forums, etc)

I was wondering, is there a way to use your fingerprint in place of a password for other uses other than logging into windows? Some uses would be internet email {specifically gmail), logging into web forums (like this one). Maybe (this is probably hopeful thinking) configure your fingerprint to includepersonal data when filling out forums such as address, DOB, phone number, etc. I will be using Firefox almost exclusively, but if theres a solution for IE i'll listen too.

__________________________________________________I was previously employed by Lenovo but have no formal role on this forum.I am here on my own time because I like fooling with PCs, especially Lenovo ones. ALL my posts are purely my personal opinion.